Montgomery bus boycott, mass protest against the bus system of Montgomery, Alabama, by civil rights activists and their supporters that led to a 1956 U.S. Supreme Court decision declaring that Montgomery's segregation laws on buses were unconstitutional. The 381-day bus boycott also brought the Rev.(Britannica.com)
Nationalism ——> A strong sense of love and devotion toward a nation
Culture ——> all the knowledge and values shared by a society.
Sedition ——> Acts if verbal or physical rebellion against civil authority
Imperialism ——> Policy extending political, economic, or military rule over another
Exploit ——> to selfishly take advantage of a weaker person or nation
Republic ——> A form of government in which representatives are elected to exercise power for citizens
They developed a written language.
We will follow this strategy: we will find the value of x using a theorem about the sum of interior angles of any polygon, and then we will compute 2x to find A.
The theorem states that the sum of the interior angles of <em>any</em> polygon with
sides is 
Your polygon has seven sides (so
), and the sum of the interior angles is

So, using the theorem, we know that
.
Since
and
, we have 
I believe the correct answer is B.